Re-visit local coupling correction in the interaction regions of RHIC

Luo, Y. ; Fischer, W. ; Liu, C. ; Marusic, A. ; Minty, M. ; Ptitsyn, V. ; Schoefer, V. ; Tepikian, S. ; Trbojevic, D. ; Zimmer, C.

关键词: BROOKHAVEN RHIC;    CONTROL SYSTEMS;    DIPOLES;    PROTONS;    QUADRUPOLES relativistic heavy ion collider;   

DOI  :  10.2172/1032058
RP-ID  :  BNL--96530-2011-IR
PID  :  OSTI ID: 1032058
Others  :  R&D Project: KBCH139
Others  :  18031
Others  :  Other: KB0202011
Others  :  TRN: US1200441

学科分类：核物理和高能物理

美国|英语

来源: SciTech Connect

【 摘 要 】

In this article we will re-visit the local coupling correction in the interaction regions (IRs) of the Relativistic Heavy Ion Collider (RHIC). We will review the measurement data of triplet quadrupole rolls, the local coupling correction strengths in the RHIC control system, and the methods for the local coupling correction with local skew quadrupole correctors. Based on the in-turnnel measurement data of triplet roll errors in 2011, we will analytically calculate and simulate IR-bump method to find out the local skew correction strengths and compare them at store and at injection with the Blue and Yellow ring lattices in the 2011 polarized proton (p-p) and Au-Au runs. The vertical dispersion from the triplet roll errors, local and global coupling correction skew quadrupoles, and the vertical dipole correctors are calculated and discussed.